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參數(shù)資料
| 型號： | LMH6646 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大?。?/td> | 637K |
| 代理商： | LMH6646 |
LMH6645/46/47
2.7V, 650μA, 55MHz, Rail-to-Rail Input and Output
Amplifiers with Shutdown Option
General Description
The LMH6645 (single) and LMH6646 (dual), rail-to-rail input
and output voltage feedback amplifiers, offer high speed
(55MHz), and low voltage operation (2.7V) in addition to
micro-power shutdown capability (LMH6647, single).
Input common mode voltage range exceeds either supply by
0.3V, enhancing ease of use in multitude of applications
where previously only inferior devices could be used. Output
voltage range extends to within 20mV of either supply rails,
allowing wide dynamic range especially in low voltage appli-
cations. Even with low supply current of 650μA/amplifier,
output current capability is kept at a respectable
±
20mA for
driving heavier loads. Important device parameters such as
BW, Slew Rate and output current are kept relatively inde-
pendent of the operating supply voltage by a combination of
process enhancements and design architecture.
In portable applications, the LMH6647 provides shutdown
capability while keeping the turn-off current to less than
50μA. Both turn-on and turn-off characteristics are well be-
haved with minimal output fluctuations during transitions.
This allows the part to be used in power saving mode, as
well
as
multiplexing
applications.
Miniature
packages
(SOT23, MSOP-8, and SO-8) are further means to ease the
adoption of these low power high speed devices in applica-
tions where board area is at a premium.
Features
(V
= 2.7V, T
= 25C, R
L
= 1k
to V
+
/2, A
V
= +1. Typical
values unless specified).
n
3dB BW
n
Supply voltage range
n
Slew rate
n
Supply current
n
Output short circuit current
n
Linear output current
n
Input common mode voltage
n
Output voltage swing
n
Input voltage noise
n
Input current noise
55MHz
2.5V to 12V
22V/μs
650μA/channel
42mA
±
20mA
0.3V beyond rails
20mV from rails
17nV/
0.75pA/
Applications
n
Active filters
n
High speed portable devices
n
Multiplexing applications (LMH6647)
n
Current sense buffer
n
High speed transducer amp
Connection Diagrams
SOT23-5 (LMH6645)
SOT23-6 (LMH6647)
SOIC-8 (LMH6645)
20020259
Top View
20020260
Top View
20020261
Top View
February 2002
L
O
2002 National Semiconductor Corporation
DS200202
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LMH6644MAX | OP-AMP|QUAD|BIPOLAR|SOP|14PIN|PLASTIC |
| LMH6645 | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMH6645MA | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMH6645MAX | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMH6645MF | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LMH6646MA | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMH6646MA | 制造商:Texas Instruments 功能描述:AMP, 2.7V, 0.65MA DUAL, POWERWISE 制造商:Texas Instruments 功能描述:AMP, 2.7V, 0.65MA DUAL, POWERWISE; Op Amp Type:Rail to Rail; No. of Amplifiers:2; Slew Rate:22V/s; Supply Voltage Range:2.5V to 12V; Amplifier Case Style:SOIC; No. of Pins:8; Bandwidth:55MHz; Operating Temperature Min:-40C; ;RoHS Compliant: Yes |
| LMH6646MA/NOPB | 功能描述:運算放大器 - 運放 2.7V, 650uA, 55MHz RRIO Amp W/ Shutdown RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMH6646MAX | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LMH6646MAX/NOPB | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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